Once you get it dialed in though the ride is great. Flex Air® Pin Box Installation and Owner’s Manual (For Aftermarket Applications) Introduction The new Flex Air® Pin Box (Fig. Trust me if you are 4 psi low you will feel the difference the first time you hit a bridge or pot hole. I did do a 2 week trip to the Keys and I probably added about 3-4 psi for my return.
FLEX AIR PIN BOX FULL
Longer trips I would suggest you take a portable air tank or compressor with you I usually carry a full 11 gallon air take just in case. Most trips I am gone only 4 or 5 days and there is no need to add any air for your return home. The bag does seem to loose pressure while sitting but the most I have had to add is about 8-10 psi after it has sat for a month. I have found that after you find that sweet spot check the pressure and the next time you hook up just check to make sure the pressure is right and you are good to go. All you really need to do is line up the arrows with the bottom of the shock cup but truck and trailer must be level and you must come to a gentle stop as to not roll the hitch head forward or backward which will give an inaccurate adjustment. My first trip was about 66 psi but I now have more junk in the front of the trailer.
However if your air pressure is not correct you will not enjoy this hitch very much.
After four trips with it and putting about 5,000 miles on it I must say I love it. My guess is there will be less maintenance with the Flex-Air, but will it help with chucking as much as the Tri-Glide? Does anyone have the Rota-Flex pin box on there coach? If so are you happy with it? Does it help with chucking? By the way the Flex-Air is about $400 cheaper than the Tri-Glide. Flex Air drastically reduces chucking, absorbs road shock, and minimizes bounce. This got worse on a long cross country trip. I had a problem with the pad working it's way back towards the rear of the pin box and 'wrinkling' up. curtairride lippertairride lippertpinboxHey Campoholics We show you how the Curt Air Ride Pin Box performs as its mounted to our Grand Design Momentum 39. The Flex-Air uses the air bag and the Rota-Flex pivoting head. Problem with rubber block on Rota Flex pin box I have the standard Rota Flex pin box with the rubber block/pad that helps stop chucking. This would be the replacement for the 1621 you have in your trailer." I can still get the Trailair Tri-Glide online so IĪsked the Lippert rep which would be better and his response was "I would go with the Flex Air since it has less moving parts." I like the idea of the Tri-glide having both the air bag and the rollers. Lippert responded "The Trail Air Tri-glide is no longer available and the replacement is the Flex Air part number 328492. It is always a great idea to carry some replacement parts especially if you will be in some remote places. I spoke with my contact at Lippert who confirmed this. Does anyone have any experience with the new Flex-Air pin box? I was just about to order a new Trailair Tri-Glide and I decided to contact Lippert and Heartland with my VIN to verify that my box is a 1621HD. Yes the Replacement Air Bag LC432404 that you referenced is the correct replacement part for your Trailair Flex Air 5th Wheel Pin Box LC328484.
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